Lesson on Biotic and Abiotic Factors

What factors both living and non living will affect my life?

3 minutes ToTHINK PAIR

SHARE

Factors affecting mouse

• Predators• Food• Shelter• Temperature• Weather• Competitors

• Pathogens• Parasites• Clean Water

Would the same factors affect this flower?

Factors Affecting Plant

• Predators• Food• Shelter• Temperature• Weather• Competitors

• Pollinators• Soil• Nutrients• Wind• Aspect• Daylight

Keywords for today

• Biotic• Abiotic• Climatic• Edaphic

At the end of today’s lesson you will be able to

• Define biotic, abiotic, climatic and edaphic• Give examples of each type of factor

Classify the factors in the picture as either biotic factors or abiotic factors

List the Biotic and Abiotic Factors in the Image

Decide if Factor is Biotic or Abiotic

Write A if Abiotic_______ Mouse _______ Rocks _______ Water _______ Fish _______ Paper _______ Glass _______ Aluminum _______ Wooden Ruler _______ Sand_______ Clouds

Write B if Biotic_______ Corpse _______ Snail _______ Vegetation_______ Bread Mould _______ Trees_______ Soil_______ Plastic _______ Pipe _______ Air_______ Wind

Biotic or Abiotic or Both?

Fish Chair Water Train Atom Plastic Insects Wood Sea Shell

Dirt Dog Worm Burger Wheat T.V. Broccoli Pine Tree Energy

Flower Dead animal Wooden Table Cotton Shirt Sunlight Ice Hydrogen Strawberries Wind

Decide whether these items are Abiotic, Biotic, or can be argued to be both, then place in the Venn diagram.

Abiotic Biotic

List the Biotic and Abiotic Factors in the Image

Abiotic Factors

• Climatic and Edaphic

• Climatic - factors that relate to the weather• Edaphic – factors that relate to the soil

What climatic factors could we measure?

• Light Intensity• Humidity• Wind speed• Temperature• Aspect• Slope

What edaphic factors could we measure?

• Soil pH• Amount of water in soil• Soil Temperature• Soil Air• Soil Texture

Inquiry Approach

• Do humans always adversely affect biodiversity?

Rice fields versus Marsh

Is the weather in Ireland the same?climatedata.eu

The Deer Population

A field study was conducted to observe a deer population in a given region over time.The deer were counted at different intervals over a period of 40 years. During this period of time both ranching and hunting increased in the study region.

A summary of the data is presented in the table.

Questions on Deer Population

• During which 10 year period did the greatest increase in the deer population occur?

• State one possible action that could have been used to help maintain a more stable population of deer in the area.

• Identify an abiotic limiting factor for the deer populations.

• Identify a biotic limiting factor for the deer populations.• List two problems an overpopulation of deer can cause

in the environment.

Abiotic Factors

Biotic Factors